Integrability and exact solutions of a two-component Korteweg-de Vries system

Integrability and exact solutions of a two-component Korteweg-de Vries system
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二元 Korteweg-de Vries 系统的可积性和精确解

DOI:
10.1016/j.aml.2015.07.007
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发表时间:
2016
影响因子:
3.7
通讯作者:
Wei Xiangqing
Wei Xiangqing
中科院分区:
数学2区
文献类型:
--
作者:
Wang Deng-Shan;Wei Xiangqing

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本文对二分量Korteweg-de弗里斯系统进行了延拓技术和Painlevé分析。证明了该系统是Lax可积的,也是P-可积的.通过将延拓代数嵌入到sl(3; C)代数中,得到了系统的3× 3 Lax表示.此外,我们还给出了二分量Korteweg-de弗里斯系统的自Bäcklund变换和一些精确解,并证明了该系统具有表现裂变和聚变行为的孤波解.
In the present paper, the prolongation technique and Painlevé analysis are performed to a two-component Korteweg–de Vries system. It is proved that this system is both Lax integrable and P-integrable. By embedding the prolongation algebra in the s l (3; C) algebra, the 3× 3 Lax representation of the system is derived. Moreover, the auto-Bäcklund transformation and some exact solutions for the two-component Korteweg–de Vries system are proposed explicitly, and it is shown that this system owns solitary wave solutions which demonstrate fission and fusion behaviors.
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